what does the phrase"at the mercy of"suggest about the waether during the time the Norse lived in Greenland in this following sentence:"The idea that the Norse who settled Greenland were totally at the mercy of the weather creates a convenient narrative."

Your school has recently decided to start serving genetically modified food as part of school lunches. give a multimedia presentation to the student council arguing for or against the new policy. include engaging visual elements and strong evidence that support your position.